/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q56P Rank the following compounds fro... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 13: Q56P (page 612)

Rank the following compounds from highest wavenumber to lowest wavenumber for their C卢O absorption band:

Short Answer

Expert verified

The order followed as:

Step by step solution

01

Wavenumber of carbonyl

Wavenumber of carbonyl is defined as the stretching frequency of the bond and showing absorption in presence of the different functional groups in the IR region of absorption of the single body of carbonyl C-O is 1124-1087cm-1

02

Wavenumber order of given carbonyl

The order followed as:

The first carbonyl shows maximum wavenumber because the presence of the lone pairs on the oxygen show delocalization into two forms.

03

Wavenumber order of given carbonyl

The third compound shows minimum wavenumber because carbonyl has more single bond character due to the contribution from the other two resonance contributors as shown below:

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Which occurs at a larger wavenumber:

a. the C=O stretch of phenol or the C-O stretch of cyclohexanol?

b. the C=O stretch of a ketone or the C=O stretch of an amide?

c. the CN stretch of cyclohexylamine or the CN stretch of aniline?

A solution of a compound in ethanol shows an absorbance of 0.52 at 236 nm in a cell with a 1 cm light path. Its molar absorptivity in ethanol at that wavelength is 12,600 M-1 cm-1. What is the concentration of the compound?

Draw structures for a saturated hydrocarbon that has a molecular ion with an m/zvalue of 128.

List three factors that influence the intensity of an IR absorption band.

A compound gives a mass spectrum with essentially only three peaks at m/z = 77 (40%), 112 (100%), and 114 (33%). Identify the compound
See all solutions

Recommended explanations on Chemistry Textbooks

Chemical Reactions

Read Explanation

Nuclear Chemistry

Read Explanation

Making Measurements

Read Explanation

Chemical Analysis

Read Explanation

Physical Chemistry

Read Explanation

Organic Chemistry

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.